Hi gui people,
Looking for some insight into the performance of gWidgets...
I made a moderately complex GUI with about 75 interactive widgets,
mostly gedit and gdroplist; I use ggroup, gframe and glayout. With
gWidgetsRGtk2 it takes a full 45 seconds to load on my machine. With
gWidgetstcltk it takes 23 seconds. It is painful to watch, you can see
each widget being created and added in turn.
So, can anyone suggest how gWidgets might be speeded up? Or are there
tricks in usage that would make a big difference?
I have tried laying out all the widgets in an invisible (or
unattached) top-level container, and then making it visible at the
end, but that seems to have no effect on the timing.
A simple example with profiling...
Rprof(tmp <- tempfile())
{ foo <- gwindow(); for (i in 1:10) gdroplist(letters[1:10], cont=foo) }
Rprof()
print(summaryRprof(tmp))
unlink(tmp)
I ran a profile of my application's start-up, but I do not know enough
about gWidgets to be able to see what is really going on. Here are the
top few functions reported by Rprof() with the percent of time spent
in each, by self and by total.
$by.self self.pct
sub 6.7
.Call 6.6
inherits 5.5
.identC 4.4
FUN 3.5
assign 3.3
exists 3.0
.Call.graphics 2.6
doTryCatch 2.4
match 2.3
options 2.3
standardGeneric 2.0
tryCatch 2.0
$ 2.0
getClassDef 2.0
.RGtkCall 1.9
as.GType 1.9
unlist 1.9
get 1.4
ls 1.4
substring 1.4
sapply 1.2
lapply 1.2
.local 1.1
$by.total total.pct
standardGeneric 89.9
<Anonymous> 58.0
tryCatch 27.3
[<- 26.4
tryCatchList 24.4
gdroplist 24.3
.leftBracket<- 23.6
tryCatchOne 23.4
try 23.2
inherits 22.5
.gdroplist 22.4
match 21.8
doTryCatch 20.5
is.factor 20.3
new 18.9
%in% 18.7
$ 18.7
lapply 17.6
$.GObject 16.7
glabel 16.3
FUN 15.9
getClassDef 15.3
add 15.1
> sessionInfo()
R version 2.7.1 (2008-06-23)
i386-pc-mingw32
locale:
LC_COLLATE=English_Australia.1252;LC_CTYPE=English_Australia.1252;LC_MONETARY=English_Australia.1252;LC_NUMERIC=C;LC_TIME=English_Australia.1252
attached base packages:
[1] tcltk stats graphics grDevices utils datasets
methods base
other attached packages:
[1] cairoDevice_2.8 RGtk2_2.12.6 gWidgetsRGtk2_0.0-38
gWidgetstcltk_0.0-15
[5] latticeExtra_0.5-1 lattice_0.17-13 RColorBrewer_1.0-2
gWidgets_0.0-28
loaded via a namespace (and not attached):
[1] grid_2.7.1 tools_2.7.1
--
Felix Andrews / 安福立
http://www.neurofractal.org/felix/
3358 543D AAC6 22C2 D336 80D9 360B 72DD 3E4C F5D8
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